The Gibbs equation describes the relationship between the components of free energy change and can be generally expressed as

Question

Quizplus · Accepted Answer

The Gibbs equation is commonly expressed as $$\Delta$$G = $$\Delta$$H - T$$\Delta$$S, where $$\Delta$$H is the change in enthalpy, T is the temperature in Kelvin, $$\Delta$$S is the change in entropy, and $$\Delta$$G is the change in free energy. This equation describes the relationship between thermodynamic quantities and the spontaneity of a reaction. Option A is the equation for the standard free energy change of a reaction at equilibrium, where R is the gas constant and Keq is the equilibrium constant. Option C is a chemical reaction between ADP, Pi, ATP, H+, and H₂O, which is not relevant to the Gibbs equation. Option D is an equation for converting Celsius to Kelvin and is not relevant to the Gibbs equation. Option E is the equation for the free energy change of a reaction at non-standard conditions, where R is the gas constant and [A], [B], [C], and [D] are the concentrations of the reactants and products. This equation is derived from the Gibbs equation, but it is not the general expression for it. Thus, option B is the best choice for the Gibbs equation.

The Gibbs Equation Describes the Relationship Between the Components of Free